Process the doc-sync queue. Reads tasks/docs-sync-queue.txt, reviews upstream docs (vision/spec/requirements/architecture/linked spec) for drift against each closed unit per rules/doc-maintenance.md, proposes diffs, applies after user approval, clears processed entries. Triggered manually or after t
Process the doc-sync queue. Reads tasks/docs-sync-queue.txt, reviews upstream docs (vision/spec/requirements/architecture/linked spec) for drift against each closed unit per rules/doc-maintenance.md, proposes diffs, applies after user approval, clears processed entries. Triggered manually or after taskman.sh prints the "Doc-sync pending" hint on a close action.